Počet záznamů: 1

Wing-Body Interaction: Numerical simulation, Wind-tunnel and In-flight Testing

  1. 1.
    0342312 - UT-L 2011 RIV NL eng J - Článek v odborném periodiku
    Popelka, Lukáš - Zelený, L. - Šimurda, David - Matějka, M.
    Wing-Body Interaction: Numerical simulation, Wind-tunnel and In-flight Testing.
    Technical Soaring. Roč. 34, č. 2 (2010), s. 29-36 ISSN 0744-8996.
    [OSTIV CONGRESS /29./. Lüsse, 06.08.2008-13.08.2008]
    Grant CEP: GA MŠk(CZ) 1M06031; GA AV ČR IAA2076403; GA ČR GA101/08/1155
    Výzkumný záměr: CEZ:AV0Z20760514
    Klíčová slova: wing-fuselage interaction * turbulent separation * vortex generators
    Kód oboru RIV: BK - Mechanika tekutin

    Wing-body interaction has been investigated by means of numerical simulation (CFD), wind-tunnel and in-flight measurements. Aims of the turbulent separation study, verification of CFD methods and application of flow-control devices have been settled. The sailplane wing-fuselage junction was subjected to in-flight visualization at four airspeeds and video recordings of a tuft array were acquired. Area of boundary layer separation was determined. Simplified geometry was used for CFD modelling and wind-tunnel visualization. Analysis of both numerical and experimental data confirms lift-distribution distortion induced by the presence of the fuselage. Passive flow-control devices were used in the junction and in-flight visualization proved turbulent separation suppression and positive influence on the sailplane performance was measured at thermalling speeds with degradation at higher speeds. Consequently, new layout of passive devices was developed.
    Trvalý link: http://hdl.handle.net/11104/0185076